- Insert Style: DNGA
- Insert Size: 431
- Corner Radius: 1/64 in
- ISO Code: 2NU-DNGA150404-BN250
- ANSI Code: 2NU-DNGA431-BN250
- Included Angle: 55 deg
- Shape: Diamond
- Material Grade: H
- Seat Size: 15
- Inscribed Circle: 1/2 in
- Maximum Depth of Cut: 0.02 in
- Country of Origin: JP
- For Use On: Hardened Steel
- Hole Diameter: 0.2031 in
- Manufacturer Name: Sumitomo Electric Industries
- Manufacturer's Grade: BN250
- Material: PCBN
- Rake: Negative
- Relief Angle: 0 deg
- Series: SUMIBORON
- Thickness: 3/16 in
- Type: Multi-Cornered One-Use Standard Edge